Kyocera Corporation

Yasuyuki Irie

Makoto Chishima

Keijiro Minami

Tohru Sunaga

Optical communication apparatuses capable of performing appropriate communication according to a distance to a receiving apparatus, optical communication methods, and an optical communication system are provided. A transmitting apparatus transmits an optical signal corresponding to data. The transmitting apparatus modulates intensity of the optical signal into intensity corresponding to a distance over which the data is to be delivered and outputs this intensity-modulated optical signal. This allows the transmitting apparatus to change the intensity of the optical signal corresponding to the data according to a distance to a receiving apparatus that receives the data, which thus allows the receiving apparatus to surely receive the data.

Optical communication apparatus, optical communication method, and optical communication system

A light source control sectionselects a first light emitting device arrangement (color combination device group) in which LEDsmake a particular visible light color by color synthesis and form one optical communication channel, and then causes the first light emitting device arrangement to emit light, and selects a second light emitting device arrangement so that a light quantity of a light sourceas a whole becomes uniform, and then causes the selected second light emitting device arrangement to emit light when the first light emitting device arrangement does not emit light. As a result, upon performing optical communication, an optical transmitting apparatus and an optical communication system that can emit an illumination light at a uniform light quantity without generating a flicker of illumination can be realized.

Optical transmitting apparatus and optical communication system

A liquid crystal component module comprises a liquid crystal dielectric layer, first and second electrically conductive layers disposed to oppose each other with the liquid crystal dielectric layer interposed therebetween, a voltage applying device which applies a DC voltage to the liquid crystal dielectric layer so as to control the dielectric constant of the liquid crystal dielectric layer, a temperature regulating element for changing the temperature of the liquid crystal dielectric layer, and a temperature control device which changes the temperature of the liquid crystal dielectric layer by means of the temperature regulating element so as to cause transition of the liquid crystal dielectric layer between solid phase and liquid phase.

Liquid crystal component module and method of controlling dielectric constant

A wireless communication system, a wireless transmitting apparatus, and a wireless receiving apparatus which can be applied to all types of light sources and can be applied to a variety of fields, provided with a medium forming an information transmission source, a general light source made of for example a lamp or the sun or another natural light source or artificial light source, a wireless transmitting apparatus for making the polarization of the light from the light source uniform and controlling the polarization plane of an infrared ray, visible ray, UV ray, or other light (modulating the light in polarization) so as to superimpose other information invisible to the human eye on visual information due to general reflected light and transmitting the same as an optical wireless signal, and a wireless receiving apparatus for receiving the optical wireless signal transmitted from the wireless transmitting apparatus and able to determine a change in orientation of the polarization plane of the light as information of the signal.

Growing community of inventors

Kanagawa, Japan

Yasuyuki Irie